Answer:
bohr descirbed the atomic structure and found that electrons travel in separate orbits around the nucleus. jj thomson created the plum pudding model.
Answer:

Explanation:
The integrated rate law for radioactive decay is

1. Calculate the decay constant

2. Calculate the half-life

Answer: what do i have to do to help.. ;-; like i need instructions and why are the words coverd off black??
;-;
Explanation: